14215889 has 8 divisors (see below), whose sum is σ = 14700840. Its totient is φ = 13737600.

The previous prime is 14215871. The next prime is 14215891. The reversal of 14215889 is 98851241.

It can be written as a sum of positive squares in 4 ways, for example, as 25600 + 14190289 = 160^2 + 3767^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14215889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14215849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2879 + ... + 6059.

It is an arithmetic number, because the mean of its divisors is an integer number (1837605).

Almost surely, 2^14215889 is an apocalyptic number.

It is an amenable number.

14215889 is a deficient number, since it is larger than the sum of its proper divisors (484951).

14215889 is a wasteful number, since it uses less digits than its factorization.

14215889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331.

The product of its digits is 23040, while the sum is 38.

The square root of 14215889 is about 3770.3963982584. The cubic root of 14215889 is about 242.2467771573.

The spelling of 14215889 in words is "fourteen million, two hundred fifteen thousand, eight hundred eighty-nine".